WO2019112029A1 - Structure de support de bras - Google Patents

Structure de support de bras Download PDF

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Publication number
WO2019112029A1
WO2019112029A1 PCT/JP2018/045043 JP2018045043W WO2019112029A1 WO 2019112029 A1 WO2019112029 A1 WO 2019112029A1 JP 2018045043 W JP2018045043 W JP 2018045043W WO 2019112029 A1 WO2019112029 A1 WO 2019112029A1
Authority
WO
WIPO (PCT)
Prior art keywords
bracket
arm
main body
base end
support
Prior art date
Application number
PCT/JP2018/045043
Other languages
English (en)
Japanese (ja)
Inventor
太輔 妹尾
伊藤　淳史
Original Assignee
いすゞ自動車株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Priority to DE112018006255.4T priority Critical patent/DE112018006255T5/de
Priority to US16/770,529 priority patent/US11560030B2/en
Priority to CN201880078859.0A priority patent/CN111433057B/zh
Publication of WO2019112029A1 publication Critical patent/WO2019112029A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/02—Attaching arms to sprung part of vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • B60G13/001—Arrangements for attachment of dampers
    • B60G13/003—Arrangements for attachment of dampers characterised by the mounting on the vehicle body or chassis of the damper unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B60G3/26—Means for maintaining substantially-constant wheel camber during suspension movement ; Means for controlling the variation of the wheel position during suspension movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/04—Buffer means for limiting movement of arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/14—Independent suspensions with lateral arms
    • B60G2200/156—Independent suspensions with lateral arms wishbone-type arm formed by two links defining a virtual apex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/42—Driven wheels or dead axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/46—Indexing codes relating to the wheels in the suspensions camber angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/11—Leaf spring
    • B60G2202/114—Leaf spring transversally arranged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/128—Damper mount on vehicle body or chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/14—Mounting of suspension arms
    • B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/43—Fittings, brackets or knuckles
    • B60G2204/4302—Fittings, brackets or knuckles for fixing suspension arm on the vehicle body or chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/45—Stops limiting travel
    • B60G2204/4502—Stops limiting travel using resilient buffer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/60—Subframe construction
    • B60G2206/601—Hanger bracket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D17/00—Means on vehicles for adjusting camber, castor, or toe-in

Definitions

  • the present disclosure relates to a support structure of an arm, and more particularly to a support structure of an upper arm of a suspension device.
  • a double wishbone type suspension device that supports wheels by an upper arm and a lower arm is known as an example of a wheel independent suspension system.
  • the upper arm of this type of suspension device is generally formed in a substantially V-shape or a substantially A-shape having a pair of front and rear end portions.
  • the upper arm is pivotably assembled to the side member by inserting a cam bolt through the long holes of the front and rear brackets fixed to the side member etc. and the through holes of each base end and fastening a nut to the cam bolt. (See, for example, Patent Document 1).
  • the present disclosure provides a support structure for an arm that can effectively improve the assembling performance of the arm.
  • the arm supporting structure of the present disclosure includes a pair of opposing walls fixed to the vehicle body and spaced apart and opposed in the vehicle longitudinal direction, and the proximal end of the arm of the suspension device is disposed between the pair of opposing walls.
  • an eccentric plate member which is engageable with the shaft support member at a position radially offset from the center of the circle, and which can be integrally rotated with the shaft support member; And a plurality of contact portions rotatably supporting the eccentric plate member in contact with the peripheral edge of the eccentric plate member.
  • a plate-shaped main body portion to which the bracket is fixed may be provided, and at least one of the plurality of contact portions may be formed by a wall surface of the main body portion.
  • the arm support structure further includes a plate member positioned between the eccentric plate member and the outer wall of the opposite wall, and the other contact portion of the plurality of contact portions is the plate member. You may form by bending an edge part.
  • the main body portion extends in the longitudinal direction of the vehicle body, and the proximal end portion of the arm is integrated with the proximal end portion on the front side and the proximal end portion on the rear side separated from each other.
  • a front bracket portion provided on the front end side of the main body portion to support the base end portion on the front side, and a rear bracket side provided on the rear end side of the main body portion; It may have a back side bracket part which supports an end.
  • an intermediate bracket portion for supporting a shock absorber may be further provided between the front side bracket portion and the rear side bracket portion of the main body portion.
  • assembly workability of the arm can be effectively improved.
  • FIG. 1 is a schematic configuration view of a part of the suspension device according to the present embodiment.
  • FIG. 2 is a configuration view of one wheel side of the suspension device of FIG. 1 and is a partial cross-sectional view.
  • FIG. 3 is a schematic view for explaining the action and effect of the suspension device of FIG.
  • FIG. 4A is a schematic side view showing the upper bracket according to the present embodiment.
  • FIG. 4B is a cross-sectional view taken along line AA of FIG. 4A.
  • FIG. 5 is an exploded perspective view for explaining the procedure for assembling the upper arm according to the present embodiment to the upper bracket.
  • FIG. 6 is a schematic perspective view showing a state in which the upper arm according to the present embodiment is assembled to the upper bracket.
  • FIG. 7A is a schematic view for explaining the attachment angle / position adjustment operation of the upper arm using the eccentric cam plate according to the present embodiment.
  • FIG. 7B is a schematic view for explaining the work of adjusting the attachment angle and position of the upper arm using the eccentric cam plate according to the present embodiment, and showing a rotated state.
  • FIG. 1 is a schematic side view of the suspension device 10 according to the present embodiment as viewed from the left side of the vehicle body.
  • the suspension device 10 is a so-called independent suspension type suspension device, and is applied to the left and right front wheels (not shown) of the vehicle 1 in the present embodiment.
  • the suspension device 10 includes an upper bracket 20 fixed to a side member 2 (the right side member is not shown) extending in the longitudinal direction of the vehicle body, and an upper arm 14 and a lower arm 16 swingable relative to the vehicle body.
  • a lower frame body 30 provided under the side member 2 and a shock absorber 46 as a shock absorbing device.
  • the suspension device 10 substantially has a left-right symmetrical configuration even when applied to the left front wheel and the right front wheel, the configuration applied to the left front wheel will be described below, and the configuration applied to the right front wheel Substantially omits the description.
  • the upper bracket 20 has a plate-like main body 21 fixed to the outer wall of the side member 2 in the vehicle width direction, a front upper bracket 22 provided on the front end side of the main body 21 in the longitudinal direction of the vehicle, A rear upper bracket portion 23 provided on the rear end side of the front and rear direction of the vehicle body 21; an intermediate bracket portion 24 disposed between the upper brackets 22 and 23 of the main body portion 21; And a rebound stopper 90 provided on the bracket portion 23.
  • the upper bracket 20 is preferably a first position P1 on the front side of the front upper bracket portion 22 of the main body portion 21, and between the front upper bracket portion 22 of the main body portion 21 and the middle bracket portion 24.
  • Second position P2 a third position P3 below the middle bracket portion 24 of the main body portion 21, a fourth position P4 between the middle bracket portion 24 of the main body portion 21 and the rear upper bracket portion 23, and a main body
  • a total of five positions of the fifth position P5 on the rear side of the rear upper bracket portion 23 of the portion 21 are fixed by fastening bolts B to the back surface nuts of the side members 2 (not shown).
  • the detailed configuration of the upper bracket 20 will be described later.
  • the upper arm 14 is formed in a substantially V-shape or a substantially A-shape, and the vehicle width is wider than the pair of upper base end portions 14a and 14b spaced apart in the vehicle longitudinal direction and the upper base end portions 14a and 14b. It includes an upper end portion 14c located outside in the direction, and a pair of front and rear arm portions 14d and 14e connecting the front and rear upper end portions 14a and 14b and the upper end portion 14c.
  • the front and rear upper base portions 14a and 14b are formed in a substantially cylindrical shape, and are pivotally supported by the front and rear upper bracket portions 22 and 23 via cam bolts 75 and 85, respectively. Details of these support structures will be described later.
  • the lower arm 16 is formed in a substantially V-shape or a substantially A-shape, and the vehicle width is wider than the pair of front and rear lower base portions 16a and 16b and front and rear lower base end portions 16a and 16b spaced apart in the vehicle longitudinal direction.
  • a lower end portion 16c located outside in the direction, and a pair of front and rear arm portions 16d and 16e connecting the lower base end portions 16a and 16b and the lower end portion 16c are provided.
  • the lower lower end portions 16a and 16b of the front and rear are formed in a substantially cylindrical shape, and are rotatably supported by the lower lower bracket portions 37 and 38 described later via bolts 98 and 99, respectively.
  • an upper end 14c of a wheel hub or a brake rotor (hereinafter simply referred to as a hub) 12 is pivoted via a ball joint 18 to an upper tip 14c of the upper arm 14.
  • the lower end portion of the knuckle 17 of the hub 12 is pivotally supported by the lower end portion 16 c of the lower arm 16 via a ball joint 19.
  • the lower frame body 30 includes a pair of front and rear main cross members 31 and a sub cross member 32 extending substantially in parallel in the vehicle width direction, and a pair of left and right longitudinal members 34 extending substantially in parallel in the vehicle longitudinal direction.
  • the vertical member of the is provided with a lower bracket 36 and an illustration thereof is omitted.
  • the sub cross member 32 is disposed on the front side of the main cross member 31 so as to be separated from the main cross member 31.
  • the vertical member 34 is disposed with the upper surface thereof along the lower surface of the side member 2 and is joined to the side member 2 by a bolt nut (or welding or the like) (not shown).
  • the longitudinal member 34 is disposed to straddle the upper portion of the lower bracket 36.
  • An upper end portion of a front lower bracket 37 to be described later is joined to the front end side lower surface of the vertical member 34 by welding or the like.
  • the sub cross member 32 is connected to and supported by the vertical member 34 via the front lower bracket 37.
  • the lower bracket 36 is joined to the lower surface of the rear end side of the vertical member 34 by welding or the like, and the upper surface portion of the main cross member 31 outside in the vehicle width direction is joined to the lower end of the lower bracket 36 by welding or the like. ing. That is, the lower bracket 36 is configured to function as a connecting member for connecting the vertical member 34 and the main cross member 31.
  • the lower frame body 30 has a pair of front and rear lower brackets 37, 38 arranged in the vehicle longitudinal direction.
  • the front lower base end 16 a of the lower arm 16 is pivotally supported by the front lower bracket 37 via a bolt 98.
  • the rear lower base end 16 b of the lower arm 16 is pivotally supported by the rear lower bracket 38 via a bolt 99.
  • An upper end of the front lower bracket 37 is joined to the longitudinal member 34 by welding or the like, and a concave portion opened at a lower end portion in a substantially U shape is provided at a lower end portion thereof.
  • the sub cross member 32 is fitted into the recess and fixed by welding or the like.
  • the rear lower bracket 38 is fixed at its front end side to the extension 31a of the main cross member 31 by welding or the like, and is fixed at its upper end side to the vertical member 34 by welding or the like.
  • the leaf spring 40 is inserted into the internal cavity 31 s of the main cross member 31 and disposed laterally in the vehicle body width direction.
  • the leaf spring 40 generally extends in the vehicle width direction, and has a shape slightly curved upward in the vertical direction.
  • One end 40a of the leaf spring 40 is disposed on the support 44 in the lower arm 16 on the hub 12 side which is the left front wheel, and the other end is similarly disposed on the support in the lower arm on the right front wheel not shown Be done.
  • the middle portion 40 b of the leaf spring 40 is accommodated in the internal cavity 31 s of the main cross member 31, and is supported by the main cross member 31 via the bush member 47.
  • the support portion 44 is accommodated in a space S defined by the lower end portion 16c of the lower arm 16 and the lower arm cover portion 16e provided to cover the upper surface of the lower end portion 16c. Under the support portion 44, an elastic body 44a is provided under the support portion 44.
  • the elastic body 44a has a function of enhancing the buffer capacity when a large force acts on the support portion 44, or absorbing the difference between the rotation locus of the lower arm 16 and the rotation locus of the leaf spring 40.
  • the lower arm 16 having the cover 16e attached to the upper surface of the lower end portion 16c has an opening 16f opening inward in the vehicle width direction.
  • One end 40 a of the leaf spring 40 extends to the space S through the opening 16 f and is supported by the support 44.
  • the bush member 47 is positioned above the leaf spring 40 in the vertical direction and connected to the upper inner circumferential surface of the main cross member 31, and the bush member 47 is positioned below the leaf spring 40 in the vertical direction and is the main cross member 31. And a lower bush 50 connected to the lower inner circumferential surface.
  • the middle portion 40b of the leaf spring 40 is supported on the inner peripheral surface of the main cross member 31 by a pair of right and left bush members 47 (the right bush member is not shown) arranged in the vehicle body width direction in the internal cavity 31s. ing.
  • the leaf spring 40 is provided so as to be pressed against the support portion 44 of the lower arm 16 by the upper bush 48.
  • the upper bush 48 is provided so that the force from the leaf spring 40 can be transmitted to the lower frame body 30.
  • the lower bush 50 is provided to the leaf spring 40 to function as, for example, a stabilizer.
  • the leaf spring 40 is curved in a substantially S-shape. It acts on both the left and right front wheels.
  • the shock absorber 46 is provided to obliquely extend between the lower arm 16 and the side member 2.
  • the lower end 46a of the shock absorber 46 is supported by a bolt and nut or the like on a support bracket 16g fixed by welding or the like on the upper surface of the lower arm cover 16e.
  • the upper end 46 b of the shock absorber 46 is supported by the middle bracket portion 24 of the upper bracket 20.
  • the upper bracket 20 fixed to the outer wall of the side member 2 in the vehicle width direction is independent of the lower frame body 30 fixed to the lower wall of the side member 2 in the vehicle vertical direction. It has composition.
  • the suspension device 10 of the present embodiment can have a high degree of freedom in design.
  • the upper bracket 20 and the lower frame body 30 have an independent configuration, the upper bracket 20 and the lower frame body 30 can be assembled separately to the side member 2, and each configuration of the suspension device 10 Among the elements, the assemblability of the lower frame body 30 particularly to the side member 2 can be improved.
  • the suspension device 10 is excellent in strength and rigidity. Specifically, as shown in FIG. 3, one end 46 a of the shock absorber 46 is connected to the lower arm 16, and the other end 46 b is connected to the upper bracket 20. Further, the connection portion of the shock absorber 46 to the lower arm 16 is located outside the upper bracket 20 in the vehicle width direction.
  • the upper bracket 20 is fixed to the outer wall of the side member 2 in the vehicle width direction. Therefore, the shock absorber 46 can apply a force to the side members 2 from the outside in the vehicle body width direction from the outside inward (hereinafter, such a transmission path of such a force is referred to as a first transmission route). Further, a force transmitted from the leaf spring 40 through the upper bush 48, the main cross member 31, the lower bracket 36, and the vertical member 34 acts on the side member 2 (hereinafter, such a force) Transfer route is called a second transfer route).
  • the moment M1 of the first transmission route acts on the side member 2.
  • the elastic force of the leaf spring 40 is transmitted to the main cross member 31 via the upper bush 48. Since the lower bracket 36 is disposed on the lower side of the side member 2 in the vehicle body vertical direction, the moment M2 of the second transmission route acts on the side member 2.
  • These moments M1 and M2 act to cancel each other. Therefore, according to the suspension device 10 of the present embodiment, the rigidity can be reliably secured against the force F without making the side members 2 thick, and the weight increase and the configuration change associated therewith are effective. Can be prevented.
  • FIG. 4A is a schematic side view showing the upper bracket 20 according to the present embodiment
  • FIG. 4B is a sectional view taken along the line AA of FIG. 4A.
  • the upper bracket 20 includes a main body portion 21, a front upper bracket portion 22, a rear upper bracket portion 23, and an intermediate bracket portion 24.
  • the main body portion 21 is a plate-like member, and the length in the front-rear direction of the vehicle body is formed longer than the separation length of the upper base end portions 14a and 14b (shown only in FIG. 4B) of the upper arm 14. Further, the length (height) of the main body portion 21 in the vertical direction of the vehicle body is formed longer than the length of the side member 2 in the vertical direction of the vehicle body.
  • the body portion 21 allows the bolts (not shown) to be inserted through the through holes 21A, 21B, 21C, 21D, 21E, and allows the bolts to be screwed with the unshown back nuts of the side members 2 or the like. It is fixed to the outer wall of the vehicle in the width direction of the vehicle.
  • the front upper bracket portion 22 is formed in a substantially U shape whose cross-sectional shape is opened inward in the vehicle width direction, and is provided on the front end side of the main body portion 21 in the vehicle longitudinal direction. Specifically, the front upper bracket portion 22 extends in the width direction of the vehicle body, and also includes a pair of first and second opposing wall portions 22A and 22B facing each other in the longitudinal direction of the vehicle body. A first outer wall 22C is provided to connect the outer edges of the vehicle body 22A and 22B in the vehicle width direction.
  • First and second elongated holes 22D and 22E (shown only in FIG. 4B) extending at a predetermined length in the vehicle width direction are respectively formed through the upper ends of the first and second opposing wall portions 22A and 22B. There is.
  • the upper base end 14a (shown only in FIG. 4B) on the front side of the upper arm 14 is inserted and disposed between the opposing wall portions 22A and 22B.
  • a pair of first and second contact plates 70A and 70B in front and rear are fixed by welding or the like around the respective long holes 22D and 22E among the outer wall surfaces of the first and second opposing wall portions 22A and 22B. ing.
  • first and second contact plates 70A and 70B In the first and second contact plates 70A and 70B, elongated holes 71A and 71B (shown only in FIG. 4B) having the same shape as the elongated holes 22D and 22E are formed to penetrate. Further, contact flange portions formed by bending the end portions of the respective plates 70A and 70B substantially at right angles in the vehicle longitudinal direction at the end portions of the first and second contact plates 70A and 70B on the outer side in the vehicle body width direction. 72A and 72B are provided respectively. The contact flanges 72A and 72B face the wall surface of the main body 21 on the outer side in the vehicle width direction.
  • the length (height) of the first outer wall 22C in the vertical direction of the vehicle body is shorter than the length (height) of the first and second opposing wall portions 22A and 22B in the vertical direction of the vehicle. That is, an opening 22F that opens to the outer side in the vehicle width direction and inserts the upper arm 14 between the first and second opposing wall portions 22A and 22B above the upper end of the first outer wall 22C (only in FIG. 4A (Shown) is notched.
  • the front upper bracket portion 22 is fixed by welding or the like to the side wall surface of the main body portion 21 on the outer side in the vehicle body width direction of the end edge of the first and second opposing wall portions 22A and 22B on the vehicle body width direction. There is. That is, a closed cross-sectional space S1 (shown only in FIG. 4B) is defined by the inner peripheral surface of the front upper bracket portion 22 and the side wall surface of the main body portion 21.
  • a closed cross-sectional space S1 (shown only in FIG. 4B) is defined by the inner peripheral surface of the front upper bracket portion 22 and the side wall surface of the main body portion 21.
  • the rear upper bracket portion 23 is formed in a substantially U shape whose lateral cross sectional shape is opened inward in the vehicle width direction, and is provided on the rear end side of the main body portion 21 in the vehicle longitudinal direction. Specifically, the rear upper bracket portion 23 extends in the width direction of the vehicle body, and is a pair of third and fourth opposing wall portions 23A and 23B facing each other in the longitudinal direction of the vehicle body and separated from each other, and these opposing walls And a second outer wall portion 23C that connects the outer edges of the portions 23A and 23B in the vehicle body width direction.
  • First and second elongated holes 23D and 23E (shown only in FIG. 4B) extending at a predetermined length in the vehicle width direction are formed through the upper ends of the third and fourth opposing wall portions 23A and 23B, respectively. There is.
  • the upper base end 14b (shown only in FIG. 4B) on the rear side of the upper arm 14 is inserted and disposed between the opposing wall portions 23A and 23B.
  • a pair of third and fourth contact plates 80A and 80B in front and rear are fixed by welding or the like around each long hole 23D and 23E among the outer wall surfaces of the third and fourth opposing wall portions 23A and 23B. ing.
  • elongated holes 81A, 81B (only shown in FIG. 4B) having the same shape as the elongated holes 23D, 23E are formed to penetrate.
  • contact flanges formed by bending the end portions of the plates 80A and 80B substantially at right angles to the longitudinal direction of the vehicle body at end portions on the outer side in the vehicle body width direction of the third and fourth contact plates 80A and 80B.
  • 82A and 82B are provided respectively.
  • the contact flanges 82A and 82B face the wall surface of the main body 21 on the outer side in the vehicle width direction.
  • the second outer wall portion 23C has a length (height) in the vertical direction of the vehicle body shorter than a length (height) in the vertical direction of the vehicle of the third and fourth opposing wall portions 23A and 23B. That is, between the third and fourth opposing wall portions 23A and 23B above the upper end of the second outer wall portion 23C, the opening 23F is opened outward in the vehicle width direction and the upper arm 14 is inserted (only in FIG. 4A (Shown) is notched.
  • the rear upper bracket portion 23 is fixed by welding the end edges of the third and fourth opposing wall portions 23A and 23B on the inner side in the vehicle body width direction to the side wall surface on the outer side in the vehicle body width direction of the main body 21 by welding or the like. ing. That is, a closed cross-sectional space S2 (shown only in FIG. 4B) is defined by the inner peripheral surface of the rear upper bracket portion 23 and the side wall surface of the main body portion 21.
  • a closed cross-sectional space S2 (shown only in FIG. 4B) is defined by the inner peripheral surface of the rear upper bracket portion 23 and the side wall surface of the main body portion 21.
  • a rebound stopper 90 is provided in the rear upper bracket portion 23.
  • the rebound stopper 90 absorbs an impact by coming into contact with the lower surface of the arm portion 14e when the arm portion 14e (all shown in FIG. 4B) is greatly lowered by the swing of the upper arm 14.
  • the rebound stopper 90 includes a rebound bracket 91 and an absorber 92 formed of an elastic material or the like that functions as a shock absorbing material.
  • the rebound bracket 91 includes a pair of side wall portions 91A and 91B joined to the second outer wall portion 23C by welding or the like, a top surface portion 91C to which the absorber 92 is fixed while connecting the upper portions of the side wall portions 91A and 91B. It has one.
  • the contact point between the support point of the rebound stopper 90 and the arm portion 14e is effective. It becomes possible to make it close.
  • the middle bracket portion 24 is formed in a substantially U shape opening downward in a side view, and is provided between the front upper bracket portion 22 and the rear upper bracket portion 23 of the main body portion 21. . Specifically, the intermediate bracket portion 24 extends in the vehicle width direction, and is paired with the fifth and sixth opposing wall portions 24A and 24B facing each other in the longitudinal direction of the vehicle, and the opposing wall portions 24A, And an upper wall portion 24C connecting the upper end edge of 24B.
  • the fifth and sixth opposing wall portions 24A and 24B are provided to be inclined so as to be apart from each other as it goes downward.
  • the upper wall portion 24C supports an upper end 46b (see FIG. 2) of the shock absorber 46.
  • the intermediate bracket portion 24 joins the end edge on the inner side in the vehicle body width direction of the fifth and sixth opposing wall portions 24A and 24B to the side wall on the outer side in the vehicle body width direction of the main body portion 21 by welding or the like.
  • the end edge on the inner side in the vehicle body width direction is fixed to the upper end edge of the main body portion 21 by welding or the like.
  • shock absorber 46 and the upper arm 14 are sub-assembled on the upper bracket 20 by providing the middle bracket portion 24 for supporting the shock absorber 46 integrally with the upper bracket portions 22 and 23 in the main body portion 21. It becomes possible to attach to the side member 2 in the state, and the improvement of assembling workability and working efficiency can be achieved.
  • FIG. 5 is an exploded perspective view for explaining the procedure for assembling the upper arm 14 to the upper bracket 20.
  • the cam bolt 75 for the front has its axial part from the second opposing wall 22B side (between the front upper bracket part 22 and the rear upper bracket part 23) from each long hole 22D, 22E, 71A, 71B and the through hole H1 of the upper base end 14a.
  • the rear cam bolt 85 has its shaft portion from the third opposing wall portion 23A side (between the front upper bracket portion 22 and the rear upper bracket portion 23) from each long hole 23D, 23E, 81A, 81B. And, it is inserted into the through hole H2 of the upper proximal end 14b.
  • the direction of insertion of the cam bolts 75 and 85 may be opposite.
  • a second eccentric cam plate 77 which is seated on the second contact plate 70B in advance, is press-fitted and fixed to the proximal end of the shaft portion of the front cam bolt 75. Further, a first eccentric cam plate 76 seated on the first contact plate 70A is fitted to the tip end of the shaft portion of the cam bolt 75. The first eccentric cam plate 76 is fitted after the cam bolt 75 is inserted into the long holes 22D, 22E, 71A, 71B and the through hole H1. In addition, a front cam nut 78 is screwed into the female screw portion 75A formed at the tip of the cam bolt 75. The cam nut 78 is fastened by a tool or the like after adjustment of the mounting angle and position of the upper base end 14a described later.
  • a third eccentric cam plate 86 which is seated on the third contact plate 80A in advance, is press-fitted and fixed to the proximal end of the shaft portion of the rear cam bolt 85. Further, the fourth eccentric cam plate 87 that is seated on the fourth contact plate 80B is fitted to the tip end of the shaft portion of the cam bolt 85. The fourth eccentric cam plate 87 is fitted after the cam bolt 85 is inserted into the long holes 23D, 23E, 81A, 81B and the through hole H2. A rear cam nut 88 is screwed into the female screw portion 85A formed at the tip of the cam bolt 85. The cam nut 88 is fastened by a tool or the like after adjustment of the mounting angle and position of the upper base end 14 b described later.
  • Each eccentric cam plate 76, 77, 86, 87 is formed in a substantially perfect circular shape, and fitting holes 76A, 77A, 86A, 87A are respectively penetrated and formed at positions offset in the radial direction from the circle center.
  • the shaft portion of each cam bolt 75, 85 has a semicircular shape including a straight portion by cutting out a part of the outer periphery in a planar shape, and similarly the fitting holes 76A, 77A. , 86A, 87A also have a semicircular arc shape including straight portions.
  • the eccentric cam plates 76, 77, 86, 87 are configured to rotate integrally with the cam bolts 75, 85 when the cam bolts 75, 85 are rotated at the time of adjusting the angle and position of the upper base end portions 14a, 14b. .
  • the shapes of the shaft portions of the cam bolts 75 and 85 and the fitting holes 76A, 77A, 86A and 87A are not limited to the illustrated example, and other shapes such as irregularities may be applied as long as they can be engaged with each other. It is also good.
  • the base end portions 14a and 14b of the upper arm 14 are cam bolts
  • the front and rear upper bracket portions 22 and 23 can be assembled so as to be freely pivotable via the 75 and 85, respectively.
  • each eccentric cam plate 76, 77, 86, 87 is configured substantially the same, in the following, the second eccentric cam plate 77 used for the front upper bracket portion 22 will be described, and other eccentric cams are described. Substantial descriptions of the plates 76, 68, 87 will be omitted.
  • the diameter D of the eccentric cam plate 77 is the distance between the contact flange portion 72B of the contact plate 70B facing each other and the wall surface 21A of the main body 21 outside in the vehicle width direction. It has a length substantially equal to the distance. That is, when the eccentric cam plate 77 is seated on the contact plate 70B, a total of two positions in the vehicle width direction across the circle center of the peripheral edge of the eccentric cam plate 77 contact the contact flange 72B and the wall surface 21A. It is configured to be supported by Thereby, as shown in FIG.
  • the operator can adjust the mounting angle and position of the upper arm 14 with respect to the upper bracket portions 22 and 23 while rotating the cam bolts 75 and 85 with only one hand, and contact As compared with a structure having no part or only one part, the workability can be surely improved. Further, since the upper portions between the upper bracket portions 22 and 23 for inserting the cam bolts 75 and 85 are open, the operator inserts the cam bolts 75 and 85 from between the upper bracket portions 22 and 23. Work can be done easily.
  • rebound stopper 90 has been described as being provided to the rear upper bracket portion 23, it may be provided to the front upper bracket portion 22, or the upper and rear bracket portions 22 and 23 may be provided. May be provided respectively.
  • eccentric cam plates 76, 77, 86 and 87 are described as being provided on both the shaft base end and the shaft end of the cam bolt 75 and 85, either of the shaft base end or the shaft end It may be provided only on one side.
  • assembly workability of the arm can be effectively improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

Cette structure de support de bras est équipée : d'un support sur lequel est positionnée la section d'extrémité de base d'un bras d'un dispositif de suspension entre une paire de parois opposées qui se font face à une certaine distance dans la direction avant-arrière du châssis de véhicule ; des éléments de support axiaux qui supportent axialement la section d'extrémité de base sur le support, en étant insérés dans des trous longs formés de façon à passer à travers les parois opposées et des trous traversants formés de façon à passer à travers la section d'extrémité de base ; d'éléments de plaque excentriques qui sont formés selon une forme circulaire et qui peuvent tourner d'un seul tenant avec les éléments de support axiaux, et ont un trou de mise en prise capable de venir en prise avec un élément de support axial formé de manière à passer à travers celui-ci à un emplacement décalé dans la direction radiale à partir du centre circulaire de celui-ci ; et d'une pluralité de parties de contact qui entrent en contact avec le bord circonférentiel des éléments de plaque excentriques, et supportent de manière rotative les éléments de plaque excentriques.
PCT/JP2018/045043 2017-12-08 2018-12-07 Structure de support de bras WO2019112029A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112018006255.4T DE112018006255T5 (de) 2017-12-08 2018-12-07 Armstützenkonstruktion
US16/770,529 US11560030B2 (en) 2017-12-08 2018-12-07 Arm support structure
CN201880078859.0A CN111433057B (zh) 2017-12-08 2018-12-07 臂的支承构造

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017236354A JP7243019B2 (ja) 2017-12-08 2017-12-08 アームの支持構造
JP2017-236354 2017-12-08

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WO2019112029A1 true WO2019112029A1 (fr) 2019-06-13

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JP (1) JP7243019B2 (fr)
CN (1) CN111433057B (fr)
DE (1) DE112018006255T5 (fr)
WO (1) WO2019112029A1 (fr)

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CN112278080A (zh) * 2019-07-24 2021-01-29 马自达汽车株式会社 前悬架装置
US20210170787A1 (en) * 2019-12-10 2021-06-10 Jason D. Wharram Vehicle having adjustment mechanism

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JP7056115B2 (ja) * 2017-12-08 2022-04-19 いすゞ自動車株式会社 サスペンション装置
JP7056117B2 (ja) * 2017-12-08 2022-04-19 いすゞ自動車株式会社 サスペンション装置
US11820197B2 (en) 2022-02-09 2023-11-21 Honda Motor Co., Ltd. Vehicle control arm assembly

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CN111433057B (zh) 2023-05-16
US20200369107A1 (en) 2020-11-26
JP2019104266A (ja) 2019-06-27
US11560030B2 (en) 2023-01-24
JP7243019B2 (ja) 2023-03-22
DE112018006255T5 (de) 2020-08-13
CN111433057A (zh) 2020-07-17

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